Magneto-electric machine for combined ignition and illumination purposes.



RR. SIMMS. MAGNETO ELECTRIC MACHINE FOR COMBINED IGNITION AND ILLUMINATION PURP osies.

APPLICATION FILED JULY 14,1913. v

Patented Mar. 2, 1915.

2 SHEETSSHEET 1'.

F, R. SIB IMF). MAGNETO ELECTRIC MAGHIN'E'EGN COMBINED IGNITION AND ILLUMINATION PURPOSES.

v APPLIOATION FILED JULY 14 1913. 1 1 30 296 Patented Mar. 2, 1915.

Z SHEETS-SHEET 2 Unirnn FREDERICK RICHARD SIMMS, Z313 L231 MAGNETG CQMPAN'K, {33* 33195335. NEW YORK.

MAGNETO-ELECTREC MACEINE FOR COMBII'IEE EGITITJIQN 15.3133 M PUElEGSEEi.

Application riled m 21%, 3.913. 'rio.

To all whom it may concern Be it known that l, FREDERICK lfliorraao SIMMS, a subject of the King of Great Britain, residing at 6 Charles street, Berkeley Square, London, England, have invented'new and useful lmprovements in Magneto-Electric Machines for Combined Ignition and illumination Purposes, of which the'following is a specification.

My invention relates to improvements in magneto-electric machines for generating ignition and illuminating current for use, for example, on motor road vehicles. v

hlagneto-electric machines of the type above referred to are known wherein two arniatures are employed which rotate between two pairs of pole-pieces, one oi the said armatures being designed for generat in}; the current for igniting the explosive charge of an internal combustion engine, and the other for generating current designed for supplying the head and other lamps of motor road vehicles.

Now, the object of my present invention is to provide means whereby the leakage of magnetic flux from one pair of polepieces is prevented, so that it does not atfeet the magnetic field of the other pairor" pole-pieces, and also, in some cases, to provide means whereby the distribution of the magnetic flux can be adjusted, so that the total flux generated is properly divided between the two magnetic fields.

As hitherto generally constructed magnets-and pole-pieces of the kind above referred to have comprised three adjacent magnets, the central inagnet being longer than the outside magnets and carrying polepieces for the ignition armature, and. the

equivalent being located preferably irif inediately above the upper endof said lower pole-pieces Which are thereby magnetlcall or le s isolated from the polepieces. The gap, slot, holes or the like no isposed in any manner relatively to the .l agoets or example, the said gap, slot or i a ,1 Ri h, L'Q

final adjustment as regards'the distribution of the magnetic liar: can be made after eachmachine is complete.

In some cases the adjustment may be effeoted by cutting away recesses in the polepieces or shoe adjacent to the lower ends ofthe two outside magnets and also cutting a recess between the upper and lower poleshoes, so as to leave only narrow strips ad- 3aoent to each side of the inner or longer magnet. Or, in. cases 111 which the longer inner magnet is not used and the outer magnets are brought slightly lower'down the adjustment of the distribution of the flux may be effected by saw-cuts providedin the horizontal plane between the two tum nels in which the armatures rotate.

To enable any invention to be fully understood I will describe it by reference to the accompanying drawing; in which Figure 1 is a side view of magneto magnets and pole-pieces constructed according to the invention. Fig. 2 is a section on the ho 2-2, li 1. 3 a side view of the pole-p sees shown in Fig. l. a View similar to Fig. 3. illust ating a modified construction of pole-p 5 and. (l are further views illustrating two other variants of the invention. Fig.7 represents a horizontal section of Figs. 1 and in the horizontal plane of the axis of the upper armature and looking downwardly.

i 8 a horizontal section of Fl 's. 1 and 1 L 1 2 taken in the horizontal plane of the axis the lower armature, looking downward. Referring first to the construction illus-' trated in i, 2, 3, C and 8, it'will be understood that the magneto illustrated is of the type above specified which comprises three adjacent magnets, a, b, 0, each oi which comprises three superimposed magnets. The central magnet a has its inner portion longer than any of the other magmenses of two pairs of poleshces adapted to re celve between them separate generating arma'tures, each member of each. pair being connected to a corresponding member of the other pair and said pairs of poleshoes being locat-edone above the other, certain of said magnets being detachably connected to the upper poleshnesancl one of said magnets having arms extending below the arms of the first mentioned magnets and being detachably connected to thelower pair of Eoleshoes, said connected poleshoe members eing separated horizontally by cutaway 

